187 	struct netpoll_info *ni = rcu_dereference_bh(dev->npinfo);  in netpoll_poll_dev()  local
193 	if (down_trylock(&ni->dev_lock))  in netpoll_poll_dev()
197 		up(&ni->dev_lock);  in netpoll_poll_dev()
203 		up(&ni->dev_lock);  in netpoll_poll_dev()
212 	up(&ni->dev_lock);  in netpoll_poll_dev()
219 	struct netpoll_info *ni;  in netpoll_poll_disable()  local
223 	ni = srcu_dereference(dev->npinfo, &netpoll_srcu);  in netpoll_poll_disable()
224 	if (ni)  in netpoll_poll_disable()
225 		down(&ni->dev_lock);  in netpoll_poll_disable()
232 	struct netpoll_info *ni;  in netpoll_poll_enable()  local
234 	ni = rcu_dereference(dev->npinfo);  in netpoll_poll_enable()
235 	if (ni)  in netpoll_poll_enable()
236 		up(&ni->dev_lock);  in netpoll_poll_enable()